Exam 18: Correlation and Regression

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Significance testing involves testing the significance of the overall regression equation as well as specific partial regression coefficients.

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The most commonly used technique for fitting a straight line to a scattergram is the ________.

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C

The term used to denote the standardized regression coefficient is called the alpha coefficient.

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The product moment correlation is also referred to as regression correlation.

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An equation used to explain the results of multiple regression analysis is called the ________.

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In a short essay,define standardization and include a discussion of beta coefficient and standardized regression coefficient to support your answer.

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In multiple regression,if the overall null hypothesis is rejected,we know which specific coefficients (βᵢs)are nonzero.

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The test statistic for evaluating the null hypothesis associated with the product moment correlation is the F-test.

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A statistic summarizing the strength of association between two metric variables is called the product moment correlation.

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Which of the following statistics indicates the degree to which the variation in one variable,X,is related to the variation in another variable,Y?

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It is not possible to conduct correlation and regression analysis if the data collected in social media are qualitative in nature.

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A(n)________ is a plot of the values of two variables for all the cases or observations.

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The difference between the observed value of Y and the value predicted by the regression equation is called the ________.

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________ is concerned with the nature and degree of association between variables and does not imply or assume any causality.

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The product moment correlation is also referred to as all of the following EXCEPT:

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A systematic relationship between two variables in which a change in one implies a corresponding change in the other is called ________.

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Regression analysis of an independent and dependent variable can be used in all of the following ways EXCEPT:

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The first step involved in conducting bivariate analysis is the development of a scatter diagram.

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According to the text,the beta coefficient is also called the beta weight.

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The ________ is the most widely used statistic that summarizes the strength and direction of association between two metric variables.

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